Crystallographic Information Framework

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Index

Image dictionary (imgCIF)

Unit codes

The following unit codes are defined in this dictionary:

metres metres
centimetres centimetres (metres * 10^( -2))
millimetres millimetres (metres * 10^( -3))
nanometres nanometres (metres * 10^( -9))
angstroms angstroms (metres * 10^(-10))
picometres picometres (metres * 10^(-12))
femtometres femtometres (metres * 10^(-15))
reciprocal_metres reciprocal metres (metres^(-1))
reciprocal_centimetres reciprocal centimetres ((metres * 10^( -2))^(-1))
reciprocal_millimetres reciprocal millimetres ((metres * 10^( -3))^(-1))
reciprocal_nanometres reciprocal nanometres ((metres * 10^( -9))^(-1))
reciprocal_angstroms reciprocal angstroms ((metres * 10^(-10))^(-1))
reciprocal_picometres reciprocal picometres ((metres * 10^(-12))^(-1))
nanometres_squared nanometres squared (metres * 10^( -9))^2
angstroms_squared angstroms squared (metres * 10^(-10))^2
8pi2_angstroms_squared 8pi^2 * angstroms squared (metres * 10^(-10))^2
picometres_squared picometres squared (metres * 10^(-12))^2
nanometres_cubed nanometres cubed (metres * 10^( -9))^3
angstroms_cubed angstroms cubed (metres * 10^(-10))^3
picometres_cubed picometres cubed (metres * 10^(-12))^3
kilopascals kilopascals
gigapascals gigapascals
hours hours
minutes minutes
seconds seconds
microseconds microseconds
degrees degrees (of arc)
degrees_squared degrees (of arc) squared
degrees_per_minute degrees (of arc) per minute
celsius degrees (of temperature) Celsius
kelvins degrees (of temperature) Kelvin
counts counts
counts_per_photon counts per photon
electrons electrons
electrons_squared electrons squared
electrons_per_nanometres_cubed electrons per nanometres cubed (electrons/(metres * 10^( -9))^(-3))
electrons_per_angstroms_cubed electrons per angstroms cubed (electrons/(metres * 10^(-10))^(-3))
electrons_per_picometres_cubed electrons per picometres cubed (electrons/(metres * 10^(-12))^(-3))
kilowatts kilowatts
milliamperes milliamperes
kilovolts kilovolts
arbitrary arbitrary system of units.

International Tables for Crystallography

Volume G: Definition and exchange of crystallographic data

First online edition (2006)

Edited by S. R. Hall and B. McMahon

An essential guide and reference to CIF for programmers, data managers handling crystal-structure information and practising crystallographers.